The first is a golden Comet
Golden Laced Wyandotte
Barred Plymouth Rock

I have done face shots, and was susspecting that the first was a female. The problem is that #3 is starting to develop red wattles(?) under its beak... but the saddle feathers are rounded like a pullets.
#2 is the smallest and most shy, and is also developing smaller wattles then #3, but they are there.

You can tell BR boys from girls by their coloring. Boys will be more white and girls will be more black. Also, the girls tend to have dark washes down the fronts of their legs. A full body shot would be helpful. From the little bit I can see in this pic, it looks like a girl.